code: def get_num_fig_managers():
      return len(Gcf.figs.values())
  
file_path: nupic-legacy/external/linux32/lib/python2.7/site-packages/matplotlib/_pylab_helpers.py
imports: import sys, gc
label_desc: Use image node_id 5 for calling the Gcf obj's underlying member method code with example usage: obj.get_num_fig_managers() and returns: len